Comprehensive Experimental and Simulation Study of the Ignition Delay Time Characteristics of Binary Blended Methane, Ethane, and Ethylene over a Wide Range of Temperature, Pressure, Equivalence Ratio, and Dilution

Energy & Fuels, vol. 34, pp. 8808–8823

Abstract

A comprehensive experimental and kinetic modeling study of the ignition delay time (IDT) characteristics of some binary blends of C 1 –C 2 gaseous hydrocarbons such as methane/ethylene, methane/ethane, and ethane/ethylene was performed over a wide range of composition (90/10, 70/30, 50/50%), temperature (∼800–2000 K), pressure (∼1–40 bar), equivalence ratio (∼0.5–2.0), and dilution (∼75–90%). An extensive literature review was conducted, and available data were extracted to create a comprehensive database for our simulations. Based on the existing literature data, an experimental matrix was designed using the Taguchi approach (L 9 ) in order to identify and complete the experimental matrix required to generate a comprehensive experimental IDT set necessary for the validation of a chemical kinetic model. The required high- and low-temperature IDTs were collected using low-/high-pressure shock tubes and rapid compression machines, respectively. The predictions of NUIGMech1.0 are examined versus all of the available experimental data, including those taken in the current study using the IDT simulations and a correlation technique. Moreover, the individual effect of the studied parameters, including mixture composition, pressure, equivalence ratio, and dilution on IDT, is investigated over the studied temperature range. Correlations that were developed based on NUIGMech1.0 are presented for each specific blended fuel over the conditions studied. These correlations show an acceptable performance versus the experimental data.

Authors 9

1. Mohammadreza Baigmohammadi corresponding

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland

2. Vaibhav Patel

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland

3. Shashank S. Nagaraja

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland

4. Ajoy Ramalingam Aachen Physico-Chemical Fundamentals of Combustion

   RWTH Aachen University

   Affiliation as printed

   Physico-Chemical Fundamentals of Combustion, RWTH Aachen University, Aachen 52056, Germany

5. Snehasish Panigrahy

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland

6. Kieran P. Somers

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland

7. Ultan Burke

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland

8. Karl Alexander Heufer Aachen Physico-Chemical Fundamentals of Combustion

   RWTH Aachen University

   Affiliation as printed

   Physico-Chemical Fundamentals of Combustion, RWTH Aachen University, Aachen 52056, Germany

9. Henry J. Curran

   Ollscoil na Gaillimhe – University of Galway

   Affiliation as printed

   Combustion Chemistry Centre, School of Chemistry, Ryan Institute, National University of Ireland Galway, University Road, Galway H91 TK33, Ireland